Which of the following linear equations matches the graph
y = 1/3 x

y = 3/2 x

y = 3x

y = 2x

y = 2/3 x

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?